From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Production test table for S.S. Sliding Armature Starter Motors.
| Identifier | ExFiles\Box 70\4\ scan0162 | |
| Date | 4th September 1929 | |
| PRODUCTION TEST TABLE OF S.S. SLIDING ARMATURE STARTER MOTOR. Date | Motor desig. | (1)(a)(b)(c)(d)(e)(f) Remarks. | (2) & (3) Remarks. | (4) Amperes => 30 | (5) Remarks | (6) Amperes ≠ 13 | (7) Remarks 12.7.29 | WJ.45 | OK (e) .780 .180 (f) .200 (.025) | OK | 25 | Passable | 11.0 | OK 12.7.29 | VK.85 | OK (e) .780 .180 (f) .200 (.023) | OK | 27 | OK | 9.0 | OK 12.7.29 | WJ.55 | OK (e) .775 .175 (f) .205 (.028) | OK | 29 | OK | 9.0 | OK 13.7.29 | WJ.75 | OK (e) .790 .180 (f) .200 (.030) | OK | 24 | OK | 10.0 | OK 13.7.29 | WJ.85 | OK (e) .790 .180 (f) .200 (.030) | OK | 29 | OK | 10.0 | OK 15.7.29 | WJ.65 | OK (e) .760 .175 (f) .210 (.033) | OK | 24 | Passable Stiff spot | 13.0 | OK 16.7.29 | FA.15 | OK (e) .770 .180 (f) .185 (.025) | OK | 24 | Just passable. | 11.0 | OK 16.7.29 | FA.25 | OK (e) .790 .175 (f) .210 (.025) | OK | 25 | OK | 12.0 | OK 4.9.29. | ||